Hi everyone,
I have 2 micromatic mini secondary regulators that don't have gauges, they have gradients on them that I should supposedly set them too but when I test that with my spunding valve they are MILES out. As they don't have gauges I'd like to fit an inline gauge but I have absolutely no idea how I do this. I've seen low pressure gauges like the below on eBay but no idea what else I need or how I set it all up. Or am I just better off replacing my secondaries?
https://www.ebay.co.uk/itm/264417624103
Any advice gratefully received.
Regards,
SD
Inline low pressure gauge
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Kev888
- So far gone I'm on the way back again!
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Re: Inline low pressure gauge
In the past I've seen gauges with a 3/8" diameter plain stem that could simply be fitted into the gas line using a push-fit tee, though I can't immediately see any of those on ebay, perhaps having a search around for such things would make your job simpler. The threaded type of gauge are much more common though, and for those there are several different options for fitting.
If it is of any help, what i tend to use is a stainless or brass (equal female) 1/4" BSP tee such as this:
With the pressure gauge in one hole and a couple of 3/8" push-fit to 1/4" BSP male thread adaptors in the other two:
Make sure your gauge, tee and push-fits have the same nominal thread size and type - e.g. 1/4" BSP. Which should be easy, except some Chinese sellers are notorious for giving just the nominal size (e.g. just 1/4") to obscure the fact it isn't BSP but actually NPT; the two aren't physically compatible in most sizes (and not perfectly so in any) so best to be consistent. You'll also need some PTFE tape or a liquid equivalent (that is safe for the plastic) to seal the threads.
Sometimes listings for gauges quote their accuracy, and by preference I would go for those. They needn't be hugely accurate for most of our purposes so it isn't all that important, but there is no telling quite how far out they might be if the seller doesn't indicate it at all.
If it is of any help, what i tend to use is a stainless or brass (equal female) 1/4" BSP tee such as this:
With the pressure gauge in one hole and a couple of 3/8" push-fit to 1/4" BSP male thread adaptors in the other two:
Make sure your gauge, tee and push-fits have the same nominal thread size and type - e.g. 1/4" BSP. Which should be easy, except some Chinese sellers are notorious for giving just the nominal size (e.g. just 1/4") to obscure the fact it isn't BSP but actually NPT; the two aren't physically compatible in most sizes (and not perfectly so in any) so best to be consistent. You'll also need some PTFE tape or a liquid equivalent (that is safe for the plastic) to seal the threads.
Sometimes listings for gauges quote their accuracy, and by preference I would go for those. They needn't be hugely accurate for most of our purposes so it isn't all that important, but there is no telling quite how far out they might be if the seller doesn't indicate it at all.
Kev
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StrontiumDog
- Piss Artist
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- Joined: Mon Mar 13, 2017 11:26 am
Re: Inline low pressure gauge
Thanks for the advice Kev, I shall have a play about and see what I can cobble together 
